Pith Number

pith:PKR6DDKV

pith:2026:PKR6DDKV7TW42WDUVITX3USWQR

not attested not anchored not stored refs pending

Phase Stable Integrated Delay Line Asymmetric Mach Zehnder Interferometers Enabled by High Efficiency 3 dB Couplers for Chip Scale QKD

Abdollah Eslami Majd, Mahsa. Ghezelbash

arxiv:2606.21542 v1 · 2026-06-19 · physics.optics · quant-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PKR6DDKV7TW42WDUVITX3USWQR}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-06-23T01:13:13.938204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7aa3e18d55fcedcd5874aa277dd25684704d3f78942d2a8fe037d9e974ccdfb3

Aliases

arxiv: 2606.21542 · arxiv_version: 2606.21542v1 · doi: 10.48550/arxiv.2606.21542 · pith_short_12: PKR6DDKV7TW4 · pith_short_16: PKR6DDKV7TW42WDU · pith_short_8: PKR6DDKV

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/PKR6DDKV7TW42WDUVITX3USWQR \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 7aa3e18d55fcedcd5874aa277dd25684704d3f78942d2a8fe037d9e974ccdfb3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aeca97d0afce53b69842837594f528adf4878451f7a44c2252d46e7a862f9a64",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2026-06-19T15:41:20Z",
    "title_canon_sha256": "5c46c542c4734754acce66a47be422f9d5ebe6b2cd4966eb746714f965be7fac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.21542",
    "kind": "arxiv",
    "version": 1
  }
}